virtualbox.org

I want to backup a remote Linux server to a local NAS frequently using SSH+rsync. There are Windows versions of rsync, but most seem designed for Windows talking to Windows. it seems more logical to run it from a local Linux instead. Would like to use a VBox for this. The Linux build doesn't need much beyond networking and SSH. No need to waste resource on a GUI.

What would be my best choice? Something like TCL?